[Gmecm] MECAL reprogramming

[David Allen]

  Thankfully I can solder better than I can type!
  Steve, I will look into those boards you mention.
  I picked a few extra Memcals at the junkyard for spares.  The idea of an
EEPROM is enticing, however I'm not into it that far yet!  When I tune with
the Romulator device, it's easy to get things dialed in before programming
the first chip. Erasing hasn't been a big issue.
  When I first started chip programming I debated whether to buy a Romulator
and in hindsight, it was worth its weight on gold!  It is as close to magic
as you can come.  It is truly real-time, and cost less than one
custom-programmable ECM.
  I think of the hundreds of changes made to the calibration on my turbo
engine, and how long it would have taken to perfect that if I had erased and
programmed a chip each time.
  I like the idea of taking a Memcal, plugging the complete thing into the
programmer, reading it and saving the BIN then being able to quickly erase
it (without soldering in a different chip) and reprogram it.  No pry marks
or soldering iron scorch marks on it or anything. :-)
  My eraser is really small but it erases fast, like 10 minutes.  The
hole-in-top modification was originally to allow erasing something else
without removing it from a carrier. It just happens to work well for a
Memcal, also. (Just remember it will do in 10 minutes what a week of full
sunlight will do.  Close the door when no chip covers the lamp.)
  I think I have about got an adapter made.....
  Thanks,
David





----- Original Message ----- 
From: "Steve Ravet" <Steve.Ravet at arm.com>
To: <gmecm at diy-efi.org>
Sent: Saturday, February 25, 2006 5:51 PM
Subject: RE: [Gmecm] MECAL reprogramming


>
>
> > -----Original Message-----
> > From: gmecm-bounces at diy-efi.org
> > [mailto:gmecm-bounces at diy-efi.org] On Behalf Of David Allen
> > Sent: Saturday, February 25, 2006 9:20 PM
> > To: GM-ECM
> > Subject: [Gmecm] MECAL reprogramming
> >
> >   I will be needing to reprogram a Memcal before long.  I
> > have an extra one to "butcher" and modify for use with the
> > Romulator device.  When I get a bin that is satisfactory I
> > want to flash it into a non-modified Memcal.  What have you
> > "old timers" been doing for an adapter to plug a complete
> > Memcal into a chip programmer?
>
> David, go to the gmecm page and click on FAQ, then "what do I need to
> get started".
>
> Also, if you do some reading on the diy-prom board at thirdgen.org
> you'll find some flash or eeprom based modifications that eliminate the
> need for UV erasing.
>
> --steve
>
>
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